1.

Given the code below:

public class CmdLine { public static void main(String[] args) { String str = ""; str = args[0] + args[1] + args[2]; System.out.print(str); } }

What is the output of the following command?

java CmdLine W "X Y" Z

Group of answer choices

WXY

WX YZ

WXYZ

W"X Y"

W"X

q2.

What will the following code print out when it is run?

Scanner fileIn = new Scanner(new File("fileIn.txt")); int count = 0; while (fileIn.hasNextLine()) { String str = fileIn.nextLine().trim(); if (str.indexOf('?') >= 0) { count++; } } System.out.print(count);

Contents of fileIn.txt:

Is this a question? ?Is this also a question? How? about? this? And? this?

Group of answer choices

7

0

8

4

6

q3.

Which of the following code segments will correctly create an instance of an Item class?

public class Item { private String name; private double price; public Item(double a, String b) { name = b; price = a; } }

Group of answer choices

Item chair = new Item(29.95, "Chair");

new Item chair = Person("Chair", 29.95);

Item chair = ("Chair", 29.95);

Item chair = new Item("Chair", 29.95);

Item chair("Chair", 29.95);